Frey's syndrome is characterized by unilateral sweating and flushing of the skin in the area of the parotid gland, occurring during meal, or on salivary stimulation. It is a common complication following surgery/injury in the parotid gland region/temporomandibular joint surgery; however, very few cases have been reported of its occurrence following herpetic infection. It is important for the clinician to recognize its unusual symptoms as early as possible to prevent its potential negative social and psychological effect on the patient. It is diagnosed on clinical presentation and confirmed by objective testing methods. The treatment ranges from topical application of glycopyrrolate to local injections of botulinum toxin and lastly to surgical intervention. An interesting case of Frey's syndrome is presented in a young patient having the previous history of herpes zoster infection, which was diagnosed clinically and confirmed by starch-iodine test and was successfully treated with topical application of glycopyrrolate.
Keywords: Frey's syndrome; glycopyrrolate; herpes infection; minor-starch iodine test.